I thought I'd seen a picture on AudioReview in their CES 2001 coverage, but I can't find the page and I don't think it included the 770 anyway. I did find a picture that Pat took of the back of the 770 they had in New York back in May. With credit to Pat for the goods,
here's a link to the pic. Enjoy, but it's worth noting that things may easily have changed since then.
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Gonk